Ultra-high-speed maglev,an emerging transportation technology,is transitioning from the realm of theoretical research into the stage of experimental validation.This paper started by outlining the foundational principles and distinguishing features of maglev rail transit,then compared the distinctions in system architecture and the values of horizontal alignment parameters between high-speed maglev and ultra-high-speed maglev systems,and verified these comparisons and distinctions by employing dynamic simulation analysis.Firstly,this study reviewed current specifications and research materials related to ultra-high-speed maglev technology,and analyzed the factors influencing and the methods for calculating the minimum curve radius and the minimum transition curve length for high-speed maglev systems,to obtain the parameter values at different speeds.Following this,the study employed dynamic simulation tools for vehicle-track systems to evaluate the relationship between dynamic performance indicators and both the curve radius and the transition curve lengths.The findings indicate that for ultra-high-speed maglev systems designed to operate at speeds of 1 000 km/h,a minimum circular curve radius of 18 800 m and a minimum transition curve length of 1 340 m are considered to be practical and reasonable.
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